Fluid-pressure-operated ejector.



W. BUCKLEY. FLUID PRESSURE OPERATED EJEGTOR. APPLICATION FILED DEG. 11,1913. 1,127,72 Patented Feb. 9, 1915.

! SHEBTSSHEET 1.

W. BUGKLEY.

FLUID PRESSURE OPERATED EJEGTOR. APPLICATION FILED D110. 11, 1913. Lliffififigfi, Patented Feb. 9, 1915.

2 SHEETS-SHEET 2.

Walk] Fess Z/re Inlet UNITED STATES PATENT caries.

WILLIAM BUCKLEY, OF CHICAGO, ILLINOIS.

FLUID-PRESSURE-GPERATED EJECTGB.

Application filed December 11. 1913.

To all whom it may concern Be it known that 1, WILLIAM BUCKLEY, a subject of the Crown of Great Britaim, and residentof Chicago, in the county of Cook and State of Illinois, have invented a new and useful Improvement in Fluid- Pressure-Operated Ejectors, of which the following is a'specification.

The object of this invention is to provide an improvement in fluid pressure operated ejectors which will be simple in construction and which will automatically control the ejection of liquid or semi-liquid from its lowest point of gravitation to any point desired.

A practical embodiment of my invention is represented in the accompanying drawings in which,

Figure 1 represents a plan view of my de vice. Fig. 2 represents a transverse central section through the same. Fig. 3 is an enlarged detail vertical section taken at right angles to Fig. 2, and Fig. 4 is a detail vertical 'section showing a modified form of valves.

The reservoir into which the liquid or semi-liquid passes is denoted by 1, and is provided with a centrally located dip pipe 2, which terminates a. short distance from the bottom. The upper end of the dip pipe 2, outside the reservoir 1, is provided with a branch inlet 3 and an outlet 4. A gate valve 5 and a check valve 6 are provided for the inlet 3. A gate valve 7 and a check valve 8 are also provided for the outlet 4. At the top of the reservoir and to one side of the dip pipe 2, there is situated a fluid pressure controlling; device 9, having an inlet chamber 10 and an outlet chamber 11. The inlet chamber 10 is provided with a stem valve 12, having a spring 13 located between the bottom of the chamber 10 and a washer 14 fixed on the stem 15. The spring 13 serves to hold the valve 12 upon its seat 16. The stem 15 of the valve 12, extends a short distance upwardly through a stuffing'hox 17. The fluid outlet chamber 11 is provided with a stem' valve 18, having a spring 19 located between the bottom of the chamber 11 and a washer 20, fixed on the stem 21. The spring 19 serves to hold the valve 18 upon its seat 22. The stem 21 of the valve 18 extends a short distance upwardly through a stufling-box 23. The fluid is admitted to thenlct chamber 10 from any source of fluid supply, not shown, through an inlet pipe 24, to the valve Specification of Letters Patent.

Patented Feb. 9, 1915.

Serial No. $05,988.

12, and exhausted from the reservoir through the valve 18 and outlet pipe 25.-

J\. rod 26 is fitted to slide vertically in a he top of the reser- -t the bottom of the s mounted to freely an en collars and rcon. The upper end of the rod 26 w above the reser voir. is provider. witi .wo stops 33. fixed to the rod, between which stops one end of a lever 3i is located. The lever 34: is loosely pivoted on a stud 35, projecting from a plate 36 uprising from the top of the reservoir 1. A weighted rocking lever 37, is also loosely pivoted on the stud 35, and is provided with abutments 38, 39. adapted to be engaged by the lever 34. The lower end of the rocking lever 37 is formed with two projections 40, 41, which are respectively arranged to alternately engage and depress the stems 15, 21., of the valves 12, 18. The plate 36 is provided with two pins 12, 43, which arrest rocking lever 37, when thrown past can z-cssm'oir i. Moatsiide on the rod 31 adgus ably ter of gravity. These pins 42, 3, covand parts within the reservoir.

A double inlet and outlet valve is shown in Fig. 4, as distinguished from the valves shown in Fig. Y

In operation. assuming that the reservoir is empty; the liquid enters through the'gate valve 5, check valve 6, inlet 3, down the dip pipe 2. and into the reservoir 1. As the liquid in the reservoir rises, the float-29 will gradually rise with the liquid, first coming in contact with the collar 30 fixed on the rod 26. where it will lift the rod until'the stop 32, also fixed on the rod 26 above the reservoir, engages the lever 34, which in turn will be raised until it engages the abutment 38 on the weighted lever 37, which will be carried upwardly until the Weighted end of said lever will be carried past its center of gravity, where it willfall to the opposite side, resting upon the pin 43, as shown in dotted outline in Fig. 3. By rocking the weighted lever 37, the pressure of the prospring, will close, thereby cutting off the exhaust. The projection 40 being lifted and the lever 37 thrown to the opposite side, causes the projection 41 to engage the valve stem and force the valve 12 open against the tension of its spring, thereby admitting pressure to the reservoir. The fluid pressure now being placed upon the liquid in the reservoir, will force the liquidup through the dip pipe 2, past the inlet 3, through the check. valve 8 and gate valve 7, to the desired level. Vthen the emptying of the reservoir has caused the contents to fall to the desired point, the float 29 will fall with the lowcrmg of the liquid until it engages the collar 31, fixed to the rod 26, when it will, by its weight, draw the rod down. The lowering of the rod 26', causes the stop 33 to engage the lever 34, which in turn lifts the abutmeat 39 and the projection 41, from the valve stem 15 and waive 12, throwing the weighted lever past its center of gravity until it falls over and rests upon the pin 42-. 'i'he' projection 40 now engages the valve stem 21 and opens the valve 18, thereby exhausting the air in the reservoir. The projection 41 being lifted from the valve stem 15 by the action of its sprin causes the valve 12 to close thereby cutting oil the fluid pressure supply to the reservoir. lVith the fluid pressure supply cut oil, the check valve 8 will automatically close and the check valve 6 will be allowed to open, due to the fact that-there is no pressure in front of it. The reservoir being emptied to the desired point, which is never below the dip pipe 2, the fluid pressure supply cut oil, and the parts in their respective position, the device is now ready to repeat another cycle of operation.

What I claim is:

1. In a machine of the character described, a reservoir for the material to be ejected having a dip pipe provided with a valved inlet and a valved outlet for the material, a fluid pressure inlet valve, an outlet valve, a

. rod slidably mounted within said reservoir, :1

float slidable on said rod, collars on said rod adapted to be engaged by said float, and a rocking lever connected to said rod for op crating said fluid pressure valves ,to automatically eject the material from ,the reservoir at intervals.

' 2. In a machine of the character described, a, reservoir for the material to be ejected having a dip pipe provided with a valved inlet and a valved outlet for the material,

a fluid pressure inlet valve, an outlet valve, :1 rod slidably mounted within said reservoir, a float slidable on said rod, collars on said rod adapted to be engaged by said float, and a rocking lever having a lost motion connection with said rod for operating said fluid pressure valves to automatically e ect the material from the reservoir at intervals.

3. In a machine of the character described, a reservoir for the material to be ejected having a dip pipe provided with a valved inlet and a valved outlet for the material, a fluid pressure inlet valve, an outlet valve, a rod slidably mounted within said reservoir, a float slidable on said rod, collars on said rod adapted to be engaged by said float, and a weighted rocking lever connected to said rod for operating said fluid pressure valves to automatically eject the material from the reservoir at intervals.

4. In a machine of the character described, a reservoir for the material to be ejected having a dip pipe provided with avalved inlet and a valved outlet for the material, a fluid pressure inlet valve, an outlet valve, a rod slidably mounted within said'reservoir. a float slidable on said rod, collars on said rod adapted to be engaged by said float, and a weighted rocking lever having a lost motion connection with said rod for operating. said fluid pressure valves to automatically eject the material from the reservoir at intervals. a

5. In a machine of the character described, a reservoir for the material to be ejected having a dip pipe provided with a' valved inlet and awalved outlet for the material, a fluid pressure inlet valve. an outlet valve, a weighted rocking lever for operating said fluid pressure valves, abutments on said rocking lever, a rod slidablv mounted in said reservoir, collars on said rod, a float slidable on said rod and adapted to engage said collars, and a lever arranged to be engaged by said rod and engaging said abutments for rocking said weighted lever to operate said fluid pressure valves to automatically eject the material. from said reservoir at intervals.

In testimony, that I claim the foregoing as my invention, I have signed my name in presence of two witnesses, this eighteenth day of November 1913. 1

WILLIAM BUCKLEY. Witnesses:

GEORGE 1. Born),

CLARA' BELLE BOND. 

